TPI 9085 Smart Vibration Analyser User Guide
- October 30, 2023
- TPI
Table of Contents
Vib Meter 9085
Vibration Monitoring & Analysis
User Guide: Version 1.0
Disclaimer
This document has been carefully prepared and checked. No responsibility can
be assumed for inaccuracies.
TPI Europe reserves the right to make changes without prior notice to any
products herein to improve functionality, reliability or other design aspects.
TPI Europe does not assume any liability out of the use of any product
described herein; neither does it convey any licence under its patent rights
nor the rights of others. TPI Europe products are not authorised for use as
components in life support services or systems. TPI Europe should be informed
of any such intended use to determine suitability of the products.
Copyright © 2021 TPI Europe Ltd.
OVERVIEW
The Vib Meter 9085 is a simple to use vibration monitoring and analysis tool
that allows easy display of vibration signals. The meter automatically
performs vibration analysis functions based on machine running speed to help
diagnose faults such as unbalance, misalignment and looseness, as well as
indicating the degree of bearing wear.
The Vib Meter 9085 unit is designed to enable a user to collect vibration and
temperature measurements from assets (e.g. pumps, motors, fans and bearings).
The unit displays vibration frequency plots and allows vibration severity and
bearing condition to be monitored, analysed and trended with the included
VibTrend PC analysis software.
1.1 Special Requirement for Temperature Measurements
To measure temperature with the 9085 the accelerometer with built in
temperature sensor (p/n A9101) must be used. This is a low power accelerometer
with temperature sensor and built-in magnet. Using the standard low power
accelerometer (p/n A9100) will allow the 9085 to measure vibration but not
temperature.
1.2 Turning the unit ON and OFF
Turning the meter ON is achieved simply by pressing the center or button.
The unit has an auto dimming feature that dims the display after 10 seconds to
conserve battery life. Pressing any button will bring the unit back to full
brightness. In addition, the 9085 will automatically turn OFF if not used for
1 minute (this time period can be increased up to 60 minutes using the Setup
Wizard).
1.3 Batteries
The Vib Meter 9085 is powered by a wireless rechargeable Lithium-Ion battery.
To charge the battery, remove the 9085 from the protective boot by prying the
boot off from the bottom. Set the 9085 on the charging pad so the symbol comes
in contact with the pad. The display of the 9085 will turn on to indicate it
is charging.
1.4 Service
The Vib Meter 9085 contains no user serviceable parts. In the unlikely case
of malfunction please return the complete unit to your supplier for repair.
Operation
2.1 Fitting the sensor
The Vib Meter 9085 is supplied with a cable connected accelerometer (sensor)
that connects to the 5 pin M12 connector on the meter. The nominal sensitivity
of the sensor is 30mV/g and this is the meter’s default setting for sensor
sensitivity.
The Vib Meter 9085 can accept the A9100 standard low power accelerometer or
the A9101 low power accelerometer with temperature sensor. The sensor
sensitivity setting of the 9085 can be adjusted to accommodate different
accelerometer sensitivities (see section 2.3.3.3 in Manual Setup).
2.2 Taking a reading
To take a reading, press the circle button to turn the unit ON. Place the
sensor on a rigid part of the machine as close as possible to the desired
measurement point (e.g. bearing block) using the magnet mount.
Pressing the circle button again takes the reading. N.B. for best results the
sensor should be placed gently onto the measurement point by “rolling” the
magnet onto the machine.
This is in order to avoid any sudden shocks that would be seen as large
acceleration peaks by the sensor and could take some time (several seconds) to
die away. Taking a reading causes the overall vibration numbers and
temperatrue screen to be displayed as shown in the example screen left. Note:
Temperature will not display if a standard low power accelerometer without
temperature (p/n A9100) is used.
This screen gives an overall view of the machine’s vibration condition as
explained in the following section.
2.2.1 Vibration & Temperature readings
Once a vibration reading has been taken, the display will show four values, as
shown in the example screen opposite. The values are colour coded to show
their alarm status as explained in the following sections.
The four values shown in the readings screen are:
- ISO value (velocity in mm/second or inch/s)
- Bearing Noise in BDU (Bearing Damage Units)
- Total g (acceleration)
- Temperature
These readings are explained in more detail below with some examples of what
they actually mean:
ISO value (mm/s)
The ISO value (in mm/s or inch/s) is the large number displayed at the top
of the screen, which is the RMS (average) of the vibration velocity in the
frequency band 10Hz (600 RPM) to 1kHz (60,000 RPM) or 2Hz (120 RPM) to 1kHz
(60,000 RPM), as specified by the ISO standard¹. The correct frequency band is
automatically selected by the meter based on running speed.
The ISO value background is colour coded according to the ISO 10816-1
vibration velocity level chart (see below). The colour coded background
indicates the condition of the machine according to the size and type of
machine selected with the Setup Wizard (see section 2.3.1).
¹
ISO 10816-1:1995. Mechanical vibration — Evaluation of machine vibration by
measurements on non-rotating parts
Bearing Noise
(BDU) Below the displayed ISO value and to the left is the value of bearing
noise (high frequency vibration) in Bearing Damage Units (BDU), where 100 BDU
corresponds to 1g RMS (average) vibration measured above 1kHz. This is a
measure of the wear state of the bearings in the equipment being monitored.
The higher the number, the more worn the bearing.
It is commonly held that 1g of high frequency vibration (100 BDU) corresponds
to a relatively high level of bearing noise and so can be considered
indicative of a damaged bearing. In other words, it may be helpful to think of
the Bearing Noise figure as being very roughly equivalent to “percentage” of
bearing wear. By default, the bearing noise is displayed on a Red background
if it is above 100 BDU, an Amber background between 50 and 100 BDU and a Green
background below 50 BDU. However, the BDU alarm levels can be changed using
the Manual Setup menu (see section 2.3.2.1).
Total acceleration (g)
This is the RMS (average) value of the total vibration acceleration measured
by the meter over its entire frequency range (2Hz to 10kHz). This reading is
shown in units of g (Earth’s gravitational constant, where 1g = 9.81 m/s 2 ).
Displacement
Pressing either the left (<) or right (>) arrow button when the reading
screen is displayed will cause the meter to display RMS displacement (in mm or
thou) on a blue background.
Pressing either left or right arrow button again will revert to display of the
ISO value (mm/s or inch/s).
Temperature
The measured temperature will be displayed at the bottom of the LCD. Once the
“Take Measurement” key is pressed the 9085 will take a vibration measurement
and then begin a 10 second countdown which allows the temperature sensor to
stabilize. After the countdown the temperature will be displayed. Various
settings can be adjusted for the temperature range like save mode, minimum
save time, auto save time, and whether the temperature readings are saved with
the vibration readings. These are explained later in the manual.
2.2.2 Vibration Analysis
Pressing the down arrow button brings up a display similar to that shown
below, which shows the readings of vibration velocity (mm/s or inch/s), or
displacement (mm or thou) if selected, broken down into each of 3 bands.
The display shows the vibration level in frequency ranges that are all based
on multiples (1X, 2X and 3X) of the specified Run Speed of the machine as
displayed beneath the 3 bar graphs. N.B. in order to perform a vibration
analysis it is important that the running speed of the machine is entered
correctly. This can be done with the “Setup Wizard” as described in Section
2.3.1 of this user guide, or by using the strobe attachment (see Section 5.1)
The frequency ranges of the VA bands are based on the following multiples of
running speed 2 :
1X = Unbalance:
The level of vibration in the frequency band based on the running speed is
usually indicative of how well balanced the machine is. A large vibration at
the running speed usually indicates that the machine is out of balance.
However even a very well balanced machine will typically show some vibration
at the running speed but this figure should ideally be quite low (e.g.
typically less than about 2 mm/sec for a medium sized machine).
2X = Misalignment:
A high level of vibration in the frequency band centred at twice the running
speed is a possible indication of misalignment. This is based on the fact that
shaft misalignment can result in a double peak in the waveform due to there
being two different centres of gravity (one from each shaft). In other words
the accelerometer picks up a peak as each centre of gravity passes by and
hence there will be two positive and two negative peaks each revolution of the
shaft. This will typically give rise to a vibration signal at double the
running speed of the machine.
3X = Looseness:
High vibration in the frequency band centred at 3 times running speed is a
possible indication that something may be loose (e.g. loose mounting bolts,
weak foundations etc.) as it is not usual to see third order vibration in a
machine unless there is some structural looseness that is being “excited” by
the vibration of the machine.
2.2.3 Frequency spectrum
Pressing the down arrow button once more brings up a display similar to
that shown opposite, where the vibration levels are shown as a frequency
spectrum in the range from 0 to 1kHz.
The heights of the peaks indicate the RMS vibration level (in mm/s or inch/s)
at each frequency point in the spectrum. The readings to the right of the
screen show the frequency (in Hz or RPM) and the RMS vibration level (in mm/s
or inch/s) at the position of the cursor (red dotted line). The cursor
position can be moved by use of the left (<) and right (>) arrow buttons.
Pressing the down arrow button increases the resolution of the frequency axis
from 100 Lines (i.e. 10Hz or 600 RPM resolution) to 800 Lines (i.e. 1.25Hz or
75 RPM resolution). Increasing the resolution effectively zooms into the
frequency spectrum. In order to display the full spectrum at the higher
resolution the display must be scrolled using the left and right arrow
buttons.
2.2.4 Live Update Mode
It is possible to have the meter continuously display readings that are
taken at intervals of approx. 1 second.
Live Update is selected from the Configuration menu, which is entered by
holding down the circle button for approx. 2 seconds
It is possible to use live update with the basic readings screen, the VA bands
screen or 100 line frequency spectrum. Pressing the circle button at any time
during live update will capture a full (800 line) resolution reading.
2.3 Configuration menus
The configuration menu is entered by pressing and holdingdown the circle
button for 2 seconds. Moving up and down the menu is achieved by pressing the
left (up) and right (down) buttons which causes the menu item to be
highlighted. Pressing the circle button will select the highlighted menu item.
Left and right arrow buttons can be used to move backward and forward through
the menus.
2.3.1 Setup Wizard Selecting the Setup Wizard opens a dialogue that
allows the machine running speed to be entered and the ISO alarm levels to be
set automatically according to the size and type of machine to be monitored.
The first Setup Wizard screen to be displayed shows the currently selected
running speed in the pre-selected units (Hz or RPM).
Changing the running speed is achieved by pressing the up arrow button (to
increase run speed) or down arrow button (to decrease run speed).
Pressing the circle button again brings up the next screen which allows the
machine type (motor or pump) to be selected.
If a motor is selected the size must be selected (under or over 300kW) or if a
pump is selected, it must be specified whether it has an integrated or
external drive unit.
Selecting the machine type and size allows the
ISO alarm levels to be set accordingly, as does specifying the type of
mounting (rigid or flexible). As a basic “rule of thumb”, unless a machine is
bolted down to a concrete floor, its mounting should be considered as being
flexible.
Most motors and pumps are mounted on some kind of frame or structure and as
such should definitely be considered as flexibly mounted.
2.3.2 Manual Setup
2.3.2.1 BDU alarm settings
Selecting BDU Settings allows the alarm levels at which the BDU readings
change colour to be altered by the user. Normal levels are displayed on a
Green background. The BDU threshold values are designated as Warning (where
readings turn Amber) and Critical (where readings turn Red). Both these
threshold values can be set independently using the up and down arrow buttons.
The default BDU thresholds are 50 for Warning and 100 for Critical. These
levels are typical for medium sized machine bearings operating at run speeds
in the region of 1000 to 3000 RPM. Larger bearings or higher run speeds may
need increased BDU threshold values to identify worn or bad bearings.
2.3.3.2 Run Speed
Run speed can also be set manually via the up and down arrow buttons.
2.3.3.3 Sensor mV/g
Accelerometer sensitivity (in mV/g) can be manually set using the up and down
arrow buttons to allow use of any desired sensitivity sensor within the range
1mV/g to 1000mV/g. This enables the resolution and range of the meter to be
set by the user. 2.3.4 Device Settings
There are three pages of Device Settings menus. To advance to the second and
third pages the down arrow button should be used. Selecting a menu option is
achieved by the up and down arrow buttons and by pressing the circle
button.
The Auto Off Time can be set from 1
minute up to a maximum value of 60 minutes, in increments of 1 minute.
The Brightness level can be set anywhere between 1 (least brightness) up to 10
(full brightness).
The operating Language can be selected from any one of a number of different
languages depending on the exact model.
Factory Reset will reboot the 9085 and set all parameters back to factory
defaults.
The Graph Mode can be set to display the frequency spectrum as either a Line
graph or a Bar graph.
The display Color Scheme can be configured as standard (full colour) or
monochrome, e.g. for convenient viewing in direct sunlight.
Date & Time setting can be achieved using the up, down, left and right arrow
buttons. Selecting Units from the Device Settings menu allows the velocity
readings to be displayed in either mm/s or inch/s. Run Speed units can be
displayed in units of Hertz 3 (Hz), revolutions per minute (RPM) or cycles per
minute (CPM). The velocity type can be selected between RMS and Peak.
Displacement units can be set to Peak or Peak to Peak. Temperature units can
be set to Celsius or Fahrenheit.
Selecting Temp Settings enables several temperature parameters to be set. Save
with Vib can be enabled or disabled. When disabled the temperature reading
will be displayed only and not saved for download. When enabled, the
temperature reading will be saved with the vibration readings and transmitted
to C-Trend software when the 9085 is docked. Save Mode can be set to Manual or
Auto. In manual mode the 9085 will prompt you to press the center key after
the countdown timer goes to zero to save the temperature reading. This can be
useful if you would like to control when the reading is saved. In auto mode
the temperature reading will be saved automatically after the countdown. Use
Min Save Time to set the minimum countdown before the 9085 prompts you to save
the temperature reading. This can be set from 10s to 120s. Auto Save Time
allows adjustment of the time before the temperature reading is automatically
saved. This can be set from 10s to 120s.
Lock Device immediately locks the 9085 to prevent unauthorized use. To
unlock the 9085 turn the 9085 on and press the center key for several seconds
until you are prompted to enter the unlock code. The default unlock code is
375.
Lock Settings locks out the ability to get into the menu to change
settings without the unlock code. In this mode the 9085 will still take
readings but the menu is inaccessible unless the unlock key is entered. To
unlock and turn off this feature turn the 9085 on and press the center key for
several seconds until you are prompted to enter the unlock code. The default
unlock code is 375.
Information displays the firmware version of the 9085 and the serial
number.
Temperature Only Mode displays only the temperature reading. Pressing and
holding the menu key puts the 9085 in temperature display only mode. Pressing
the center test key will return the 9085 to normal operation.
Asset Management
Pressing the Asset Manager button (factory key, located just below the down
arrow button) brings up the Machines menu.
Machines have user-defined names up to 16 characters long.
Scrolling the list of machines is achieved with theup and down arrow buttons.
Selecting a machine is done with the circle button, which then brings up a
list of measurement points for that machine. Measurement points also have
user-defined names up to 16 characters long.
The list of measurement points can also be scrolled by using the up and down
arrow buttons and each measurement point can be selected using the circle
button.
The various options for each measurement point (MP) are then displayed:
- Take Reading – takes a new reading and saves it to this MP
- Save Reading – saves the previously taken reading to this MP
- Load Reading – loads a previous reading (e.g. for re-display)
- Configuration – allows the run speed and alarm levels to be set independently for each individual MP.
Machines and their measurement points are downloaded from VibTrend, the
supplied trending and asset management software for PC using the supplied USB
docking cradle.
The exact list of machines to be downloaded is determined by the user in
VibTrend.
There will also always be a machine downloaded named ‘off route’ that contains
10 MPs. This is done to allow users to save readings for upload to VibTrend
where they can then be saved to a new or existing machine.
C-Trend II – Trending Software
C-Trend II is the PC based software that allows users to view trends of
vibration readings taken with the Vib Meter 9085, in a way that enables
predictions to be made about machine condition.
C-Trend II is included with the 9085. Once the software is
installed go to the activation screen and email the Hardware Key that is
displayed to: tech@testproductsintl.com
C-Trend II is very intuitive and very easy to drive and its full functionality
is described in more detail in its built-in Help Guide.
In brief, C-Trend II allows display of vibration data in a variety of
different ways including vibration frequency spectra, bearing noise and ISO
trend plots, waterfall diagrams (see figure below) and can generate reports
either manually or automatically (e.g. by sending out email alerts).
Specifications
| Size | 200 mm x 60mm x 26mm |
|---|---|
| Weight | 280g (not including magnet) |
| Environmental | |
| Water, Sand & Dust: | IP67 Waterproof |
| Operating: | 32°F to 122°F (0°C to 50°C) |
| Storage: | -4’F to 158°F (-20°C to 70°C) Batteries not installed |
| Power supply | Lithium-Ion wireless rechargeable battery |
| Battery life | Auto power OFF – typically 20 hours continuous operating time |
depending on brightness setting.
Frequency range| 2 Hz to 1 kHz (ISO) / 1 kHz to 10 kHz (BDU)
Max frequency resolution| 1.25 Hz @ 800 lines FFT setting
Accuracy| +/-5%
Measurements| Acceleration in g, Velocity in mm/s (or inch/s), Bearing noise
in BDU (bearing damage units), Displacement (mm, microns, inch), Temperature
(F/C)
Displayed Frequency Units| Hertz (Hz), RPM or CPM
Input range| User selectable with accelerometer sensitivity
Dynamic range| 96 dB (0.01g resolution)
VA diagnostic bands (RPM = run speed)| Unbalance lx RPM / Alignment 2x RPM
/Looseness 3x RPM
Temperature Measurement Range & Accuracy| Range: -60°F to 300°F (-50°C to
150°C) Accuracy: (+/- 4°F) / (+/- 2°C)
Accessories| • A9081A PC docking cradle — USB connection
• A9106 Carrying case
• A9101 Low power accelerometer with temperature & built-in magnet
• A9105 Curly cable for low power accelerometer with and without temperature
• A9086 Protective boot
• A9091 C-Trend II software
Optional Accessories| • A9100 Low power accelerometer (no temperature)
• A9073 Magnet with ‘A x 28 stud for accelerometer
Basic operation
© TPI Europe 2021
TPI 9085 User Guide V1.0
Test Products International
9615 SW Allen Blvd Suite 104
Beaverton, OR 97005 USA
Tel: (800) 368-5719
Fax: (503) 520-1225
Web site: www.testproductsintl.com
References
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